Hyper Dense Wavelength Multiplexing (HDWM)
HDWM expands the use of available fiberoptic cable by multiplexing any of the existing multi-color channels by a factor of as much as two orders of magnitude. Since the HDWM system is highly linear there is no crosstalk between these channels and this allows for a much more efficient use of the cables already installed in metropolitan areas.
Applications: This technology is appropriate for both DoD and commercial applications. For DoD platforms it provides distribution of sensor/control data, redundant fiber links to and from multiple locations, and chip-scale hyper-dense frequency division multiplexing. The technology is flexible and permits mixed analog and digital signals without interference. It allows programmable signal-to-noise/bandwidth and bit rate/bandwidth products. The channels are available fulltime and require no time-division multiplexing
For the metropolitan-area fiber-optic distribution networks, even though there are already many multi-color channels, there will be a need to increase the number of discrete channels as the usage demands increase. The high-fidelity nature of this approach will increase each optical channel's usage and will permit as much as a hundred-fold increase in the aggregate data rate in each of the existing channels.
A patent protecting this technology has been issued and a proof of concept has been demonstrated by a recognized organization.